This fairy-tale treehouse in Hokuto, Japan is supported by a single cypress trunk and surrounded by a bevy of cherry blossom trees. Built by architect Terunobu Fujimori for the Kiyoharu Shirakaba Museum, the charming treehouse is actually a Japanese teahouse that was built specifically for enjoying the cherry blossoms in full bloom. Fujimori designed the unique, one-legged structure to be sturdy enough to sway with the tree during stormy weather and through earthquakes. As you can see by the interior shot of the teahouse, though the outside is all fantasy, the inside is left both simple and modern.